Cooling Problem
#1
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Location: Deerfield Beach, FL
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Cooling Problem
I have a 30' Scarab with twin 7.4 Bravos. When I went out this weekend, one motor is running at 150-155 degrees, the other is fine. I changed the thermostat, but no luck. The housing is the new stlye, cast iron, and is getting pretty nasty, but seems to be unobstructed. The engines use circulating pumps, could that be the problem? I can lay my hands on the risers, so I do not think that's the probelm, but would appreciate any advice. Thanks.
#2
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When was the last time you replaced the Impeller in the Raw Water Pump(s)?
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Both motors have 140 degree thermostats, the other motor never goes above 140. The temp on the motor in question has been rising over the last year very slightly up to this 150-155 level. Manifolds and/or risers?
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Not sure where to get it online, but i got mine from a local guy. It comes as a kit with new bolts, impeller, gasket, and housing. The housings are plastic aand wear with the impeller! just make sure you twist the impeller in the right way. Good luck